Cloudflare WAF


We are interested in your WAF, but we are not sure how it works. Our goal is there are different IPs we want to block coz its trying to inject i.e."><script>alert(String.fromCharCode(88%2C83%2C83))%3C/script%3E&g=1&t=UG9zaXRpb246VCBhbmQgQ3xSYW5rOjF8T2ZmZXIxOiZwb3VuZDs1IEJPTlVTfE9mZmVyMjpEZXBvc2l0ICZwb3VuZDswfE9mZmVyMzpQbGF5IHdpdGggJnBvdW5kOzV8UmF0aW5nOjUuMA &g=1&t=UG9zaXRpb246VCBhbmQgQ3xSYW5rOjF8T2ZmZXIxOiZwb3VuZDs1IEJPTlVTfE9mZmVyMjpEZXBvc2l0ICZwb3VuZDswfE9mZmVyMzpQbGF5IHdpdGggJnBvdW5kOzV8UmF0aW5nOjUuMA,,,,

Is the WAF can automatically detect injection and block the IP or are we gonna set a rules (but problem is there is no pattern)? Our server is getting hammered.

i guess im looking for rate limiting, is that available in cloudflare for free or need an upgrade?

I don’t think Cloudflare is going to divulge what exactly the WAF will block or not, but you can certainly set up a test domain and try it out.

There’s also Rate Limiting:

I changed the domain name in the examples above to and got a sorry you’ve been blocked page… so I think you’d be covered. :smiley:

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